This tutorial , will show what is ruby , rbenv , RubyGems , gem , bundler , and cocoapods . It will also show , how to install rbenv , the commands that can be used with rbenv , how to use the gem command , and how to install cocoapods .

This tutorial , will show how to install and configure , nginx and php , under macOS . It will also show , how to configure a local website , using nginx and php .

In macOS there are some standard directories which can be in one of the user , local , system or network domains . There are also some standard Unix/Posix like directories .

This article will start by explaining what is the user , local , system and network domain . After that it will explicate the standard directories that belongs to these domains. Next it will explain what are the Unix/posix like standard directories . Finally it will elucidate the other macos directories .